JPS60184006A - Additive for cold permanent wave lotion - Google Patents

Abstract

PURPOSE:To provide the titled additive which is an aqueous solution containing terpenes as main active deodorizing component, and is effective to actively deodorize the ill odor of cold permanent wave lotion without masking the odor with the smell of perfumery, etc. CONSTITUTION:Terpenes used mainly as raw materials of perfumery, preferably citral, limonene, cedrol, cineole (eucalyptus oil), etc. are used as the main deodorizing components of the objective additive. The additive is used preferably in the form of an aqueous emulsion, and the concentration of the terpene in the emulsion is preferably about 30-45% when terpene is used singly. The additive may be incorporated further with camphor oil, eucalyptus oil, etc. at a concentration of about 5-20wt%. EFFECT:It utilizes the deodorizing activities of terpenes, i.e. the molecular adsorptivity of terpene and the activity of terpene vapor to encapsulate the odorous fine particles.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to cold permanent wave liquid phase additives.

Various types of cold permanent waving liquids are currently being developed and used, but these contain ammonium thioglycolate, ethanolamine thioglycolate, and/or cysteine as the main agent to cleave cystine bonds in the hair and soften the hair. It uses salts, and contains stearyldimethylbenzyl ammonium chloride and potassium bromate as stabilizers, and lanolin, polyoxyethylene lanolin, etc. as hair protectants. Among ammonium thioglycolate, ethanolamine thioglycolate, and cysteine, which are the main ingredients and are used as hair softeners, ammonium thioglycolate is the most effective, but it has a strong ammonia odor and an extremely unpleasant mercaptan odor (such as thioglycolate). Ethanolamine glycolate has a weaker mercaptan odor than ammonium thioglycolate, but its effect is also slightly lower, while cysteine salts have the advantage of not having an unpleasant odor but are less effective and Cold permanent wave liquids have the disadvantage that they are easily damaged and are about three times more expensive than thioglycolic acid-based products. are appropriately blended.

Therefore, with conventional cold permanent wave liquids, it is impossible to avoid generating and escaping unpleasant odors (ammonia odor and mercaptan odor) caused by thioglycolic acid compounds. For this reason, lavender fragrance and the like are added to general-purpose cold permanent wave liquids, but the reality is that they do not sufficiently mask the above-mentioned unpleasant odor. In connection with this point, it should be noted that, first, among the unpleasant odors mentioned above, ammonia odor disappears relatively quickly, but mercaptan odor remains highly persistent; The fragrance, such as lavender fragrance, added for the purpose of masking disappears quickly. Thirdly, and this is the most problematic, when the waves are set at a beauty salon etc. The stabilization rate is only about 60%, and the stabilization rate increases over time, so you can wash your hair for about a week after setting the waves, during which time a relatively strong mercaptan odor remains. The point is that there are no countermeasures to weaken it, even though it exists.

Therefore, an object of the present invention is to provide an active measure for deodorizing the unpleasant odor of a cold permanent wave liquid, rather than a passive measure of reducing the unpleasant odor of the cold permanent wave liquid with an aroma such as a perfume.

According to the present invention, this object is achieved by an additive for cold permanent waving liquids containing terpenes as the main active ingredient for deodorizing.

Terpenes are generally used primarily as raw materials for fragrances, but in the present invention, the lateral characteristics of terpenes, such as molecular adsorption and fine particles that emit unpleasant odors, are combined with the vapor of terpene-based substances. The deodorizing effect of encapsulation is utilized.

Suitable terpenes used in the present invention include citral, limonene, cedrol, and cineole (eucalyptus oil).

Since the additive according to the present invention is a cold permanent wave liquid phase additive which is an aqueous solution, its dosage form is preferably an aqueous emulsion. Aqueous emulsions of terpenes or those solubilized in water can be easily prepared using known and commonly used methods for emulsifying fats and oils.
can be manufactured. There are no particular conditions to regulate the terpene concentration in the emulsion, but when a terpene is used alone, it is generally appropriate to set it at about 30 to 45%. The additive according to the present invention may contain terpenes or substances containing terpenes, such as camphor oil or eucalyptus oil, and in this case, the terpene content layer can be reduced to about 20%.

The blending ratio of the additive according to the present invention for deodorizing or deodorizing the unpleasant odor of commercially available cold permanent wave liquid is as follows:
Depending on the type of cold permanent wave liquid, it should be increased for those with a high ammonium diglycolate content, but if the additive formulation is an aqueous emulsion with the above terpene concentration, it should be about 5 to 20%. That's about it.

Next, production examples, deodorizing test examples, and reference examples will be explained.

Production Example 1 (Additives) An aqueous emulsion was prepared in a conventional manner using the following components.

Citral oil 42 (volume%) Lanolin 3 Emulsifier (non-ionic surfactant) "Emulgen 420" - mark) 5 Water 50.

Production Example 2 (Additives) Limonene 45 (% by volume) Polyoxyethylene sorbitan oleate 6 Sodium lauryl sulfate 2 Water 35 Limonene, polyoxyethylene sorbitan oleate and sorpitan oleate were added and mixed, and heated to 70°C. While heating and stirring, a solution of sodium lauryl sulfate dissolved in water and heated to 70° C. was added to this mixture, and then stirred for about 10 minutes and allowed to cool to prepare an aqueous emulsion.

Production example 3 (additives) Limonene 30 (% by volume) Polyoxyethylene hydrogenated castor oil 5 Sodium lauryl sulfate 2 Butylated hydroxytoluene 0.3 Water 61.7 Limonene, polyoxyethylene hydrogenation and as an antioxidant for mustard oil and limonene of butylated hydroxytoluene was added and mixed, heated to 70°C and stirred, and a solution of sodium lauryl sulfate dissolved in water and heated to 70°C was added to this mixture, then stirred for about 10 minutes and allowed to cool. An aqueous emulsion was prepared.

Preparation Example 4 (Additives) An aqueous emulsion was prepared in the same manner as in Preparation Example 2, except that limonene and eucalyptus oil were used in a volume ratio of 20:80 instead of limonene.

Preparation Example 5 (Additives) An aqueous emulsion was prepared in the same manner as in Preparation Example 2, but using limonene, camphor oil and eucalyptus oil in a volume ratio of 20:10:70 instead of limonene.

Production Example 6 (Additives) An aqueous emulsion was prepared in a conventional manner using the following linear components.

Cedrol 40 (volume %) Butylhuman xytoluene 5 Emulsifier (non-ionic surfactant "Emulgen 420" - trademark) 5 Water 50 Contains 87 ammonium thioglycol as a hair softener and has the strongest pores Production Examples 1 to 5 target cold permanent wave liquid commercially available from Company A, which is said to be
A panel test was conducted to conduct a deodorization test using the following additives, and the following results were obtained.

As a control, we tested a commercially available deodorizer from Company B, which contains sodium abietate as its main component and is said to have a high molecular adsorption effect, but this deodorizer reacts with the ammonium salt contained in the cold permanent wave solution. Not only did it gel, but it also emitted an extremely unpleasant odor.As a comparison, a strong deodorizer commercially available from Company 0 containing wood anchor as its main ingredient was tested, but no deodorizing effect was observed.

The meanings of the evaluation symbols in the table are as follows.

X Strong unpleasant odor Δ Slight unpleasant odor ■ Odor that does not cause any practical problems O Odor that is almost unnoticeable ◎ No unpleasant odor Reference example 1 (Cold permanent wave liquid) Cold permanent wave liquid is made by blending the following line components. was prepared. Almost no thioglycolic acid odor was detected from Hondo.

Ethanolamine thioglycolic acid 13 (Volume %) (Contains 50% as thioglycolic acid) Aqueous emulsion (Production example 2) 8 Monoethanolamine 1.8 Fragrance 0.2 Water 77 Reference example 2 (cold permanent wave liquid) A cold permanent wave liquid was prepared by VA by blending the ingredients.Hondo has an ammonia odor that is not a problem in practical use, but no thioglycolic acid odor was observed.

Ammonium thioglycolate solution 13 (Volume %) (Contains 50% as thioglycolic acid) Water-soluble emulsion (Production example 3) 12 28% ammonia water 2.6 Fragrance 0.2 Water 72.2 Reference example 3 (cold permanent wave) (Liquid) A cold vermane solution was prepared by blending the following components. No cysteine odor was observed in the aqueous solution.

Cysteine 6 (volume %) Monoethanolamine 3 Aqueous emulsion (Production Example 2) 8 Water 83 Reference Example 4 (Cold permanent wave liquid) A cold permanent wave liquid was prepared by blending the following components. No cysteine odor or thioglycolic acid odor was observed in the aqueous solution.

Cysteine 6 (% by volume) Thioglycolic acid-ammonium solution 0.6 (Contains 50% as thioglycolic acid) Ethanolamine 3.8 Aqueous emulsion (Production Example 3) 8 Water 81, 6

Claims (1)

[Claims] A cold permanent wave liquid phase additive characterized by using terpenes as the main active ingredient for deodorizing.